AI-Augmented Cyber Operations
Enhance security workflows by integrating validated AI agents.
Validate Operational Readiness
Assess and verify that cyber teams can withstand real-world threats.
Cyber Workforce Development
Build and elevate cyber talent through structured plans.
Strategic Cyber Resilience
Strengthen the ability to prevent and recover from incidents.
For Teams
Enterprise Platform
Our cyber workforce development platform
Capture The Flag
Assess cyber readiness with team exercises
Threat Range
Team exercises for measurable readiness
Crisis Control
Test your response in real-world incidents
Talent Search
Source and hire validated security talent
For Individuals
Academy
Courseses and learning paths for all levels
Labs
1,500+ hands-on cybersecurity labs
Capture The Flag
Compete in gamified security competitions
Job Board
Discover cybersecurity jobs worldwide
HTB AI Range
Test capabilities, evaluate AI resilience, and deploy safer assistants & agents within the reinforcement learning platform.
For Your Teams
Red Teams Blue Teams Purple Teams
For Your Industry
Government Finance Consulting Education
Plans
Resource Hub
Educational resources for hackers, schools and teams.
Explore all resources
Live Sessions
Tune in on Twitch for live walkthroughs.
Join Us Now
Community
Upcoming Events Meetups Affiliate Program SME Program Ambassador Program Parrot OS
Get Help
Help Center Contact Support Trust Center
From the blog
Latest Cyber News
Read more articles
Industry Reports
Forrester Wave 2026 Q1 Report
Explore Forrester's objective evaluation of cybersecurity training platforms, with a spotlight on the capabilities security teams need for AI-enabled operations.
Read the report
About HTB
About us Newsroom Careers Social Impact Brand Guidelines Certificate Validation Legal
Contact Us
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Why Hack the Box?
Join our mission to create a safer cyber world by making cybersecurity training fun and accessible to everyone.
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Featured News
Access specialized courses with HTB Academy Gold annual plan.
Read more news
Store
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Why HTB

Platform

Plans

Resources

Company

Business

Get Started

Why HTB

AI-Augmented Cyber Operations

Enhance security workflows by integrating validated AI agents.

Validate Operational Readiness

Assess and verify that cyber teams can withstand real-world threats.

Cyber Workforce Development

Build and elevate cyber talent through structured plans.

Strategic Cyber Resilience

Strengthen the ability to prevent and recover from incidents.

Platform

For Teams

For Individuals

For Your Teams

Red Teams Blue Teams Purple Teams

For Your Industry

Government Finance Consulting Education

Resources

Community

Upcoming Events Meetups Affiliate Program SME Program Ambassador Program Parrot OS

Get Help

Help Center Contact Support Trust Center

Resource Hub

Educational resources for hackers, schools and teams.

Explore all resources

Live Sessions

Tune in on Twitch for live walkthroughs.

Join Us Now

From the blog

Latest Cyber News

Industry Reports

Forrester Wave 2026 Q1 Report

Explore Forrester's objective evaluation of cybersecurity training platforms, with a spotlight on the capabilities security teams need for AI-enabled operations.

Read the report

Company

About HTB

About us Newsroom Careers Social Impact Brand Guidelines Certificate Validation Legal

Partners Enterprise

Connect

LinkedIn X YouTube Facebook Discord Server

Store

HTB Swag Buy Gift Cards

Why Hack the Box?

Join our mission to create a safer cyber world by making cybersecurity training fun and accessible to everyone.

View open jobs

Access specialized courses with HTB Academy Gold annual plan.

Redefining Cyber Mastery

We empower individuals and teams to build real-world cybersecurity skills, strengthening resilience across every organization.

4.3m

Platform Members

1.5k+

Organizations Trained

742

Training Labs

1.2K

CTFs & Events Supported

300+

Employees

Who we are

Hackers at heart

Hack The Box is the leading cyber readiness platform for the agentic era, battle-testing and upskilling both humans and AI agents to enhance organizational cyber resilience. Trusted by the Fortune 500, government agencies, and MSSPs, Hack The Box delivers threat-informed learning paths consisting of real-world scenarios in gamified labs and live-fire simulations that build and validate offensive and defensive cyber capabilities.

Community

Make HTB the world’s largest, most empowering, and inclusive cybersecurity community.

Gamification

Make hacking the new gaming. Gamification and meaningful engagement at their best.

Content

Provide the most cutting-edge, curated, and sophisticated hacking content out there.

For Individuals

Learn cybersecurity from scratch. Be the best security professional out there. Get certified, get hired.

Learn to hack

For Businesses

For security managers and CISOs that want their employees to be trained and attack-ready.

Upskill your team

For Governments

For national agencies and public sector teams requiring NIST-aligned training.

Build a mission-ready workforce

Product Suite

Hacker

Learn

Grow

Compete

Get Hired

Business

Universities

Hacker

Business

Universities

Learn

Grow

Compete

Get Hired

Meet Our Leadership

HARIS PYLARINOS

Founder & CEO

HARIS PYLARINOS

Founder & CEO

Haris is the Founder and CEO of Hack The Box. Driven by a vision to connect and upskill the global cybersecurity community, he disrupted the industry by bringing HTB to life. He has led the company’s global expansion, driving significant growth. Under his leadership, HTB has scaled to more than 300 employees and over 4 million platform members since its launch in 2017.

NIKOS FOUNTAS

Chief Operations Officer

NIKOS FOUNTAS

Chief Operations Officer

Nikos Fountas is COO, Company Director, Board Member, and an early team member at Hack The Box. With 15+ years of experience, he specializes in operations, strategy, and international B2B/B2G growth. He drives operational excellence, scalable processes, and customer-centric initiatives that support sustainable growth.

GIBB WITHAM

President

GIBB WITHAM

President

Gibb Witham is the President of Hack The Box. With two decades of experience across cybersecurity, AI, and enterprise software, Gibb has spent his career at the intersection of innovation, capital, and operational execution. Prior to Hack The Box, he spent 14 years as a venture capital investor at Paladin Capital Group, where he partnered with high-growth companies at the forefront of cybersecurity and enterprise AI innovation.

CHRISTINE BARTLETT

Senior Vice President Marketing

CHRISTINE BARTLETT

Senior Vice President Marketing

Christine Bartlett is SVP of Marketing at Hack The Box, championing a simple idea: great cybersecurity teams aren’t born in classrooms, they’re forged through continuous, community-validated skills development. She turns HTB’s mission into momentum, shaping the brand and driving growth. With 12+ years in cybersecurity, including senior roles at Cisco and SonicWall, Christine is known for sharp go-to-market leadership, crisp executive comms, and making marketing measurable, earning a spot on Pavilion’s “50 CMOs to Watch in 2024.”

GERASIMOS MARKETOS

Chief Product Officer

GERASIMOS MARKETOS

Chief Product Officer

Gerasimos is CPO at Hack The Box, where he leads product strategy and execution, driving the evolution of hands-on learning, enterprise readiness, and emerging areas such as AI security. With over 20 years of experience across high-growth startups and NASDAQ-listed companies, he brings deep expertise at the intersection of cybersecurity, data, and product development, focusing on building scalable platforms and translating complex technologies into customer value.

KONSTANTINOS DOLKAS

Chief Technology Officer

KONSTANTINOS DOLKAS

Chief Technology Officer

Konstantinos Dollkas is CTO at Hack The Box, where he leads Infrastructure, Engineering, AI, Data, and Analytics, shaping the technology strategy behind the company’s next phase of growth. He plays a key role in scaling the capabilities that power the platform, reinforcing HTB’s commitment to innovation, performance, and operational excellence.